48 Markham, ON Window Professionals

Essential to your Markham, ON home’s beauty, function and feel, windows are one element for which it never pays to skimp. When they aren’t doing their job, you’ll know it, and the resulting leaks, drafts or other problems can be costly to rectify. Hire a trusted Ontario professional to help you select and install your windows, and you’ll enjoy the rewards of your investment for years to come. More 
GoldStar Window (416) 800-2002
Richmond Hill, ON, CA L4C 3C7
9 miles from Markham
GoldStar Window stands by and takes pride in our state-of-the-art windows that have been tested by Mother Nature for years and prevailed. We provide opportunity to upgrade your... Read More 
Concord, CA L4k1J9
12 miles from Markham
Fibertec Manufactures North America's Most Luxurious, Energy Efficient, and Durable Window System. Our premium products are built using Fiberglass Pultrusion Technology for Eco... Read More 
Concord, ON, CA L4K 3P2
12 miles from Markham
WELDA Windows & Doors proudly offers energy efficient windows - energy saving vinyl windows, front entry doors, sliding patio doors, porch enclosures, interior shutters, siding... Read More 
Concord, ON, CA L4K 1G6
12 miles from Markham
Eco Choice Windows and Doors is one of Ontario’s leading providers of Quality Energy Efficient Replacement Vinyl Windows, European Tilt and Turn Windows, Fiberglass Doors, Steel... Read More 
Fasada (905) 827-3331
Oakville, ON, CA L6M 4J3
36 miles from Markham
Get the best windows and doors- Burlington, Oakville, Milton, Hamilton, Ancaster and Stoney Creek! Homeowners have praised us for years for combining the qualities of a... Read More 
Woodbridge, ON, CA L4L 5Y8
18 miles from Markham
masters of making exceptional vinyl windows and doors Read More 
Newmarket, ON, CA L3Y 7B9
17 miles from Markham
Established in North America in 1988, TILTCO a Windoworld Group company gained a reputation for providing discerning customers with high performance, quality fenestration... Read More 
Campbellville, ON, CA L0P1B0
40 miles from Markham
Ridley Windows & Doors Inc. has been a purveyor of high-quality wood windows, doors and architectural products for residential, commercial and institutional projects in southern... Read More 
Toronto, ON, CA M3J2Z1
14 miles from Markham
Imperial Windows and doors specialize in replacing windows and doors with energy star products. We provide you with high quality energy efficient vinyl windows, decorative... Read More 
Burlington, ON, CA L7S 1Y4
44 miles from Markham
Residential Window Cleaning. Inside & Out Service. Bonded & Insured. Professional Technique. Courteous & respectful of your property. Read More 
Concord, ON, CA L4K 3M1
12 miles from Markham
Winmax - Windows and Doors provides families in the Greater Toronto Area with quality windows and doors products. Some of our products include: Interior Doors, Exterior Windows,... Read More 
Epic view windows & doors (647) 929-4470
Vaughan, CA
12 miles from Markham
Sell and install residential windows and doors Read More 
Toronto Windows and Doors (416) 491-4400
Vaughan, ON, CA L4K 3M1
12 miles from Markham
Toronto windows and doors provides exactly that. Specializing Interior and Exterior Windows and Doors replacement and service. Read More 
Inline Fiberglass Ltd (866) 566-5656
Toronto, ON, CA M9W1K1
14 miles from Markham
Inline Fiberglass Manufactures the world's Most Luxurious, Energy Efficient, and Durable Fiberglass Window Systems. Our stylish products are built using our own Fiberglass... Read More 
Toronto, ON, CA M3K 1G1
14 miles from Markham
Word of mouth is our best advertise !! We love referrals!! Thermoline Windows started in 1983 31 years of quality Service and Experience . Thermoline Windows offers energy... Read More 
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What Does a Window Professional Do?


Whether you’re building a new home, remodeling an old one or just replacing a few windows that are past their prime, your Markham, ON window professional will help you pick the right windows for your needs, home style and budget. Windows come in so many sizes and types that expert advice often is invaluable in helping you make the best decision. These pros also are knowledgeable about sliding doors, French doors and other paned portals.

Window professionals also can repair a window that’s developed problems or fix a broken sheet of glass. Your window pro might work closely with Ontario builders or remodelers as well. Here are some related professionals and vendors to complement the work of windows: Window Treatments, General Contractors, Home Builders, Specialty Contractors, Siding & Exterior Contractors.

Questions to ask a prospective window professional:


  • How long have you been in the business?
  • How many projects like mine have you completed?
  • May I see examples of previous projects?
  • Who will be working on the project? Are the workers employees or subcontractors?
  • What training and licensing do you have?
  • Can you provide me with references?
  • How do you charge, and what does that include?
  • Can you give me a written estimate?
  • Do you offer a warranty?
  • When can this job get done?
  • What happens when the cost exceeds the budget? What about changes to materials or labor pricing?
  • What will I need to provide?
  • Are there any important considerations or concerns you foresee with this project?

Find a window professional on Houzz. Narrow your search in the Professionals section of the website to Markham, ON windows. You can also look through Markham, ON photos to find examples of windows that you like, then contact the window professional who worked on them. You can find more windows in Toronto, North York, Ottawa, Hamilton and London.
Professional Categories in Markham
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